Renesas R5F526TBDGNE#30

Overview

R5F526TBDGNE#30 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, operating at up to 120 MHz with 709 CoreMark performance, 512 KB on-chip code flash, 64 KB SRAM, and integrated CAN FD, high-resolution PWM (260 ps min. resolution), and dual 12-bit D/A converters. It targets real-time closed-loop motor drive systems requiring IEC60730 functional safety compliance.

For engineers reviewing the R5F526TBDGNE#30 datasheet, R5F526TBDGNE#30 pinout, R5F526TBDGNE#30 application, or R5F526TBDGNE#30 equivalent, key selection criteria include its 120 MHz GPTWa timer with 3-phase/5-phase complementary PWM support, 16 KB data flash endurance (100,000 erase/write cycles), hardware-accelerated trigonometric functions (TFUv2), and Trusted Secure IP Lite encryption engine with AES-128/256.

Technical Context

The R5F526TBDGNE#30 implements the RXv3 CPU core with single-cycle instruction execution, 16 register banks for fast context switching, and MPU-based memory protection - enabling deterministic real-time response in safety-critical motor control firmware. Its clock system integrates PLL, HOCO (16/18/20 MHz), LOCO (240 kHz), and IWDT-dedicated 120 kHz oscillator, allowing independent domain clocking (ICLK up to 120 MHz, PCLKA/PCLKC up to 120 MHz, PCLKB/PCLKD up to 60 MHz).

Peripheral coordination is managed via Event Link Controller (ELC) with 183 internal event signals, enabling interrupt-free synchronization between MTU3d timers, GPTWa PWM generators, S12ADH A/D converters, and CAN FD message triggers - critical for precise timing in field-oriented control (FOC) loops and sensorless commutation.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B (100-pin LQFP, 14 mm × 14 mm, 0.5 mm pitch). Pin count and I/O configuration align with 100-pin variant: 82 general-purpose I/O pins, 2 × 5-V tolerant inputs, 15 high-current outputs, pull-up resistors on all I/O, open-drain capability, and port retention during low-power modes.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar motor control MCU applications.

Compared with R5F526TBDGNE#30, the R5F526TADGNE#30 offers identical motor control peripherals and pinout at lower memory capacity, while the R5F566TEBGFE#30 extends performance and connectivity for next-generation networked motion control - neither is pin-compatible nor software-binary compatible without firmware adaptation.

Availability

R5F526TBDGNE#30 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, automotive auxiliary systems, and PLC I/O modules requiring stable component supply across extended product lifecycles.

Supply support for R5F526TBDGNE#30 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics Corporation is a global semiconductor leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX26T Group, including R5F526TBDGNE#30, was designed specifically for high-efficiency, safety-certifiable motor control in industrial and consumer inverters - integrating hardware acceleration, functional safety features, and precision analog/motor peripherals into a single chip.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TBDGNE#30?

The R5F526TBDGNE#30 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark performance under benchmark conditions. This reflects its RXv3 CPU core's efficient pipeline and single-cycle instruction execution capability. The R5F526TBDGNE#30 sustains this performance with no wait states on its 512 KB code flash and 64 KB SRAM, making it suitable for computationally intensive motor control algorithms.

Does the R5F526TBDGNE#30 support CAN FD, and what standard does it comply with?

Yes, the R5F526TBDGNE#30 integrates a CAN FD module compliant with ISO 11898-1:2015, supporting both standard and extended frames. It enables data rates up to 5 Mbps (dependent on physical transceiver) and provides robust error handling and message filtering essential for real-time motor control networks. The R5F526TBDGNE#30 uses dedicated CAN0TX/CAN0RX pins and supports programmable bit timing for flexible bus integration.

What is the resolution and timing precision of the high-resolution PWM (HRPWM) in the R5F526TBDGNE#30?

The R5F526TBDGNE#30 delivers a minimum HRPWM timing resolution of 260 ps when operating at 120 MHz, applied to GPTW0–GPTW3 outputs. This precision enables fine-grained dead-time control and phase alignment critical for minimizing electromagnetic interference and conduction losses in SiC/GaN-based inverter designs. The R5F526TBDGNE#30 achieves this via dedicated hardware interpolation logic synchronized with the PCLKC clock domain.

How does the R5F526TBDGNE#30 support IEC60730 Class B compliance for household appliances?

The R5F526TBDGNE#30 includes multiple hardware features for IEC60730 Class B: oscillation-stop detection, RAM test assist (DOC), A/D converter disconnection monitoring, clock frequency accuracy measurement, independent watchdog timer (IWDT) with window function, and register write protection. These allow automated self-tests without CPU intervention - a key requirement verified in the R5F526TBDGNE#30's certified safety manual (R01UM0574EJ0100).

What analog peripherals are integrated into the R5F526TBDGNE#30, and how are they configured for motor control?

The R5F526TBDGNE#30 integrates a 12-bit S12ADH A/D converter (7+8 channels across two units), two 12-bit R12DAb D/A channels, and six CMPCa analog comparators. For motor control, S12ADH supports simultaneous sampling across three sample-and-hold units, R12DAb provides reference voltages for comparators used in overcurrent protection, and CMPCa enables fast analog fault detection (<100 ns response) - all coordinated via ELC for cycle-accurate timing. This configuration is confirmed in the R5F526TBDGNE#30's peripheral register map and application note R01AN5517EJ0100.